Bug 1030719 - Properly restore form data for contenteditables r=smacleod

browser/components/sessionstore/test/browser_formdata.js

@@ -204,9 +204,22 @@ add_task(function test_design_mode() {
   // Modify the document content.
   yield sendMessage(browser, "ss-test:sendKeyEvent", {key: "m"});
 
-  // Duplicate the modified tab.
-  let tab2 = gBrowser.duplicateTab(tab);
-  yield promiseTabRestored(tab2);
+  // Close and restore the tab.
+  gBrowser.removeTab(tab);
+  tab = ss.undoCloseTab(window, 0);
+  browser = tab.linkedBrowser;
+  yield promiseTabRestored(tab);
+
+  // Check that the innerHTML value was restored.
+  let html = yield getInnerHTML(browser);
+  let expected = "<h1>Mmozilla</h1><script>document.designMode='on'</script>";
+  is(html, expected, "editable document has been restored correctly");
+
+  // Close and restore the tab.
+  gBrowser.removeTab(tab);
+  tab = ss.undoCloseTab(window, 0);
+  browser = tab.linkedBrowser;
+  yield promiseTabRestored(tab);
 
   // Check that the innerHTML value was restored.
   let html = yield getInnerHTML(browser);
@@ -214,7 +227,6 @@ add_task(function test_design_mode() {
   is(html, expected, "editable document has been restored correctly");
 
   // Cleanup.
-  gBrowser.removeTab(tab2);
   gBrowser.removeTab(tab);
 });
 

toolkit/modules/sessionstore/FormData.jsm

@@ -226,6 +226,7 @@ let FormDataInternal = {
       setTimeout(() => {
         if (doc.body && doc.designMode == "on" && doc.documentURI == savedURL) {
           doc.body.innerHTML = data.innerHTML;
+          this.fireEvent(doc.body, "input");
         }
       });
     }
@@ -311,13 +312,23 @@ let FormDataInternal = {
 
     // Fire events for this node if applicable
     if (eventType) {
-      let doc = aNode.ownerDocument;
-      let event = doc.createEvent("UIEvents");
-      event.initUIEvent(eventType, true, true, doc.defaultView, 0);
-      aNode.dispatchEvent(event);
+      this.fireEvent(aNode, eventType);
     }
   },
 
+  /**
+   * Dispatches an event of type |type| to the given |node|.
+   *
+   * @param node (DOMNode)
+   * @param type (string)
+   */
+  fireEvent: function (node, type) {
+    let doc = node.ownerDocument;
+    let event = doc.createEvent("UIEvents");
+    event.initUIEvent(type, true, true, doc.defaultView, 0);
+    node.dispatchEvent(event);
+  },
+
   /**
    * Restores form data for the current frame hierarchy starting at |root|
    * using the given form |data|.